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2 Sheets-Sheet .1;

(No Model.)

0. BOYCE.

BOOK GOVER 0R PROTECTOR.

No. 326,838. Patented Sept. 22, 1885.

N. PETERS. Plmlo-Limognphur. Wnhinghm. DJ;

2 Sheet -Sheet 2.

(No Model.)

0'. BOYCE.

BOOK GOVER 0R PROTECTOR.

No. 326,838. Patented Sept. 22, 1885.

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: FEE CEO CAROLINE BOYCE, OF NEvV YORK, N. Y.

BOOK COVER OR PROTECTOR.

SPECIFICATION forming part of Letters Patent No. 326,838 dated September 22,1835.

Application filed June 30,1884. (No nmdelJ To aZZ whom it may concern:

Be it known that I, CAROLINE Boron, of the city and county of New York, in the State of New York, have invented a new and useful Improvement in Book Covers or Protectors, of which the following is a specification.

My invention relates to book covers or protectors which are commonly made of Manila or other strong and tough paper, and which are to be applied to the exterior ofthe book to protect the binding and prevent wear thereof. Covers or protectors of this kind have been heretofore made of a piece of paper out somewhat larger than the book to be covered, in order to provide flaps, which, after the bookcovers are laid on the paper cover or protector, are folded over the edges of the book-covers and secured by gum or by interlocking tongues and slots.

The object of my invention is to provide a strong and durable cover which can be readily applied to a book, and which, when applied, will only form a single thickness of paper on the inner sides of the book-covers.

The invention consists in a novel combination, with the side covers of a book, of acover or protector constructed and applied thereto, as hereinafter described, and pointed out in the claims; also in a novel construction of cover or protector, also pointed out in the claims.

In the accompanying drawings, Figure 1 is an end view of a book having my improved paper cover or protector applied to it. Fig.

\ 2 is a plan of the open book, showing the inner sides of the covers thereof and the paper protector applied thereto. Fig. 8 represents on a smaller scale the paper blank for the cover or protector, and Fig. 4 represents the paper cover or protector partially folded.

Similar letters of reference designate corresponding parts in all the figures.

A designates the leaves, and B B designate the side covers, of a book to which my improved cover or protector is to be applied.

To make the protector or cover, I take a blank or piece of paper of about the form shown in Fig. 3. The height or width of this piece should be considerably greater than the height or dimension of the book from top to bottom, and is preferably nearly or quite double the height of the book. The length of the piece of paper should be such that its two end portions, when folded inward, will be sufficient to cover the inner sides of the side covers, B, of

the book. The piece or blank Ois first folded or creased along the dotted lines a a, Fig. 3, which brings it to the form shown in Fig. 4. The turned-in portions 0 are shown as quite narrow, in order to economize paper; but they may be of such width that when folded over they will nearly or quite meet, thus making a double thickness of paper throughout. The folded blank is then creased or folded on the dotted lines b b and c 0, (indicated in Fig. 4,) and is ready to be applied to the book, as I shall soon describe. I have here shown slits or not chcs d in opposite edges of the blank at points coincident with one of the dotted lines 0, thereby forming supplemental flaps 0", for a purpose hereinafter described. These slits or cuts and supplemental flaps O' formed by them are not necessarily employed, but they serve a purpose hereinafter described. If the blank is made without the slits or cuts d, it would present throughout thesame appearance as the left-hand portion of the blank shown. By folding inward the portions C it will be seen that Iform pockets 0*, open at the ends and extending to the lines of creasing c, and these pockets severally receive the side covers, B, of the book, the said covers being slipped into the pockets from the open ends thereof. The making of the supplemental flaps or fold ed portions 0* enables that portion of the cover or protector to receive or be applied to the one side cover without slipping the latter into the open end of the pocket, as I shall now describe. The protector or cover 0 having been folded inward or creased for folding on the lines 0, one side cover B of the book is slipped into the open-ended pocket 0*, at the left hand of Fig. 1, and the other cover B is enveloped or introduced into the right-hand pocket 0*, by tucking the supplemental flaps O= inward under the outside of the side cover B and between it and the protector O. The covered book then presents the appearance shown in Figs. 1 and 2, the side covers B being covered on their inner sides with but a single thickness of paper throughout.

The construction of the paper cover or protector, so as to form a uniform instead of an unequal thickness on the inner sides of the side covers, is very advantageous, because, when the paper protector forms an uneven or variable thickness on the inner sides of the side covers, the covers are apt to be bent or warped, the appearance of the book injured, and its durability lessened.

When the protector is made without the slits or cuts d,the side covers ofa small or light book may be readily slipped into the pockets 0* from the open ends thereof, or the protector may be applied to any book by lifting the leaves of the book and allowing the side covers B to drop downward,thus permitting the two openended pockets 0* to be slipped upon them. If the book be heavy, this lifting by the leaves and allowing the side covers to fall downward might strain the binding, and hence the advantage of forming the slits or cuts (1 and flaps 0*, which may be tucked under one side cover after the other side cover has been slipped into the other pocket.

WVhen slit or cut at (Z, the protector 0* may be applied in either of the ways above described.

The protector or cover may be made of Manila or other strong paper, and the thickness and strength of the paper may be varied ac cording to the size of the book and the amount of handling to which it is to be subjected.

The protectors may be cut out, creased, and folded by machinery and sold as'an article of stationery, and they may be applied without any gum or other substance liable to soil the books, covers, or fingers.

From the foregoing description it will be understood that when my protector is applied to the side covers B of a book the flap portions 0, which are inward of the dotted lines 0 0, do not receive the side covers B under them, but lie on the outer sides of said covers, while the flap portions 0, which are outward of or beyond the lines 0 0, do receive the said covers B under them, and in this way the protector is secured upon the book. In other words, the portions of the protector inward of the lines 0 0 simply lie in the outer sides of but do not receive the side covers B, while the portions outside or beyond the lines a 0 form pockets 0*, which receive the side covers.

What I claim as my invention, and desire to secure by Letters Patent, is-' 1. The combination, with the side covers B B of a book, of the cover or protector 0, herein described, having the folded portions 0 at top and bottom and folded inward on the lines 0 c, the portions of the protector outward of the lines 0 0 being parallel with the portions inward of said lines and forming open-ended pockets 0*, within which the side covers B B are inserted and which cover the inner surfaces of the said covers, while the portions open-ended pockets 0*, and having the folded portions 0' slit or cut coincident with the line 0, as at d, substantially as herein set forth.

CAROLINE BOYCE.

Vitnesses:

0. HALL, FREDK. HAYNES. 

